Bently Nevada 330910-14-19-10-02-00 3300 NSv Proximity Probe

Description

The 330910-14-19-10-02-00 is an eddy-current 3300 NSv Proximity Probe engineered by Bently Nevada for industrial machinery vibration monitoring and asset protection. This small-profile transducer operates as part of the 3300 XL NSv Proximity Transducer System, which is specifically optimized for centrifugal air compressors, refrigeration compressors, and process gas machinery with restrictive installation geometries. It functions by generating a high-frequency radio frequency (RF) field from its tip, detecting micro-gap variations caused by eddy currents on a moving target face, and transmitting raw displacement signals back to a conditioning Proximitor sensor.

This non-contacting sensor is ideal for applications where counterbore, sideview, or rearview limitations restrict the use of standard 5 mm or 8 mm probe systems. The 330910-14-19-10-02-00 features an M10X1 metric thread chassis equipped with a stainless steel interlocking armor sleeve to safeguard the extension wire against mechanical stress and fluid friction. It is calibrated to measure radial shaft vibration on small shaft diameters (under 51 mm or 2 in) or axial thrust position on flat targets smaller than 15 mm (0.6 in). Operating without external agency certifications under this general-purpose designation, the probe delivers a continuous linear displacement signal to host diagnostic platforms.

Features

• Specialized small-profile design engineered for tight counterbores and restricted sideview clearance zones.
• M10X1 metric threaded case construction paired with stainless steel interlocking armor for high durability.
• Gold-plated brass ClickLoc coaxial connector ensuring a positive, vibration-resistant locking terminal interface.
• Optimized core electronics capable of tracking small targets, including narrow shaft profiles under 51 mm.
• Full backward compatibility with legacy Bently Nevada 3300 RAM transducer loops and 190 series systems.

Applications

• Radial vibration and dynamic shaft position monitoring on fluid-film bearings of high-speed centrifugal air compressors.
• Rotor axial thrust displacement measurement inside small-envelope industrial turbo-expanders.
• High-frequency tachometer, shaft speed sensing, and Keyphasor phase reference signal acquisition.

Mechanical Profile & Exact Weight Formulas

In high-precision reliability engineering, using default box sizes or generic dimensions creates severe alignment risks. According to the official Bently Nevada 147385 datasheet parameters, the true mechanical configuration, physical footprint, and cumulative mass metrics for this specific 1.0-meter armored assembly are calculated as follows:

• Unthreaded Case Length (Option A): Exactly 14 mm (0.55 in).
• Overall Case Length (Option B): Exactly 19 mm (0.75 in).
• Threaded Case Section: Calculated as Overall Case Length minus Unthreaded Length (19 mm - 14 mm) = 5 mm (0.20 in) of active M10X1 threads.
• Total Physical Cable Length (Option C): Exactly 1.0 meter (3.9 feet / 39 inches) from probe tip to the end of the coaxial terminal.
• Linear Mass Density of Armored Cable: Nominal 64 grams per meter (0.70 oz/foot) due to the heavy-duty interlocking stainless steel protective outer armor sleeve.
• Net Probe Head and Brass Hardware Mass: Approximately 30 grams (1.06 oz) including the M10 case, coil assembly, and rear transition hub.
• Total Net Hardware Weight: Calculated as (64 g/m x 1.0 m) + 30 g = 94 grams (3.32 oz) absolute dry weight per assembly (excluding shipping container and the included 17 mm lock nut).

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Total System Loop Matching: This 1.0-meter physical length probe must be paired with a 4.0-meter extension cable to form a 5.0-meter total system loop, or a 6.0-meter extension cable to form a 7.0-meter total system loop. The total length must precisely match the electrical calibration length of the 3300 XL NSv Proximitor sensor.
• Mechanical Gap Adjustment: Manually thread the probe into the machine casing until the tip contacts the target surface, then back it out to the designated linear gap voltage threshold (typically -9.0 Vdc or central linear range) before tightening the 17 mm lock nut.
• Avoid Ground Contacts: Ensure the miniature coaxial ClickLoc connector junction does not touch the metal walls of the junction box or conduit fittings. Wrap the connected union with self-fusing silicone tape to prevent electrical noise loop interference.
• Conduit Protection Routing: The flexible stainless steel armor provides mechanical deflection protection; however, the probe lead wire should still be routed within dedicated low-voltage instrument trays to minimize exposure to high-voltage electromagnetic fields (EMI).